Senior security officials said the terrorists managed to enter the facility, that has been previously attacked twice, taking advantange of the the inadequate security arrangements.
Despite percieved security threats, the boundary wall of the centre was made up of mud and five-feet high, officials said.
They said security should have been enhanced since the facility was located in one of Quetta's sensitive areas.
On September 6, Inspector General Police Balochistan, Ahsan Mehboob had requested the Chief Minister Sanaullah Zehri for construction of a boundary wall for the academy.
Today, he announced a three-day mourning in the province for those who lost their lives in the attack.
Army chief Gen Raheel Sharif visited the police training academy where he reviewed the security situation and was briefed on the attack by officials.
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